Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are driven by an unwavering passion that transcends mere responsibility, embodying the majestic blend of exquisite artistry and the meticulous science inherent in precision manufacturing. Our unrivaled expertise is a beacon in the realm of high-end component fabrication, illuminating the path to unparalleled precision and excellence. Leading the charge in the development and production of groundbreaking intelligent automation equipment, our advanced solutions cater to a myriad of industries, seamlessly addressing a diverse range of applications, including:
- Medical and Biotech: We deliver meticulously crafted, high-precision components and groundbreaking solutions for cutting-edge medical devices, steadfastly maintaining the pinnacle of quality standards.
- Semiconductors: We enhance chip production and its associated equipment by supplying essential core components that are crucial to the industry's success and progress.
- New Energy: We are actively engaged in the dynamic and sustainable advancement of innovative energy equipment, championing eco-friendly technological progress.
- Automotive: We provide indispensable components that propel innovation within the automotive sector, fostering the evolution and expansion of smart and electric vehicles.
Main Products
- Our specialization lies in crafting non-standard customized components, comprehensively serving the medical, automation, semiconductor, and automotive industries, consistently delivering unmatched precision and exceptional quality at every juncture.
Why choose us
Core Advantages
- A Fleet of Excellence Our operations proudly showcase an extraordinary assortment of over 300 renowned machines, enabling us to masterfully address a comprehensive spectrum of equipment categories. This capability empowers us to skillfully fulfill the intricate machining needs of diverse industries with unparalleled precision and efficiency.
- With a rich history spanning two decades, we leverage vast production experience combined with substantial technical and process prowess, guaranteeing exceptional quality and forward-thinking innovation, setting us apart as pioneers in the realm of precision engineering.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Exceptional Incoming Material Scrutiny
Every piece of raw material that enters our premises is subjected to an extensive and thorough examination. This detailed process encompasses comprehensive analyses of both chemical compositions and physical properties. Our steadfast commitment to superior quality compels us to require each supplier to provide a Certificate of Origin and a stamped Declaration of Conformity. This stringent selection ensures that only the finest materials are chosen for our precision medical machining services. Our rigorous validation procedures stand as a testament to our assurance that these materials meet the highest standards of integrity and purity, reflecting our unwavering commitment to exceptional quality.
Comprehensive In-Process Quality Assurance
Throughout our complex and critical machining operations, every component undergoes a thorough and precise examination to ensure its dimensions and tolerances not only meet but exceed our stringent specifications. Our continuous and vigilant inspection protocol is meticulously designed to identify and rectify any potential issues at the earliest stage possible. This proactive approach is crucial in preventing non-conforming parts from advancing to subsequent stages, thereby drastically minimizing the risk of inferior products. Consequently, outstanding quality is firmly upheld at every stage of the production process, embodying our relentless pursuit of excellence.
Proactive First Article Inspection (FAI)
Our First Article Inspection (FAI) serves as a foundational strategy, crucial in preemptively identifying and addressing potential production challenges. This forward-thinking approach is essential in preventing issues from escalating into mass production. The detailed and precise methodology of our FAI plays a key role in mitigating quality risks, ensuring that our products consistently reach the highest standards. This unwavering dedication to excellence permeates every aspect of the production cycle, guaranteeing that our offerings not only meet but consistently exceed the most stringent quality benchmarks.
Thorough Comprehensive Final Inspection
Before any product leaves our facility, it undergoes an exacting and all-encompassing final inspection. This rigorous process meticulously examines every detail, from dimensions and visual appeal to performance and any unique customer specifications. Our comprehensive inspection protocol exemplifies our relentless commitment to quality, ensuring that each component dispatched from our facility meets our exacting standards. Our steadfast dedication is to deliver nothing less than the highest quality products to our valued customers, cementing our esteemed reputation for excellence and unwavering reliability.
Packaging & Shipping
Company Profile
Since its inception in 2009, following its founding roots in 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has emerged as a formidable bastion of expertise in the realm of high-precision basic component machining. With unwavering dedication to innovation over the past two decades, we have delved deeply into technical research, establishing ourselves as pioneering giants in the field of precision engineering. We have amassed a wealth of cutting-edge technical expertise, earning a stellar market reputation that distinguishes us as industry leaders. Our capabilities in precision medical machining services are truly unmatched, consistently achieving incredibly tight tolerances and flawless surface finishes. This makes us the preferred choice for discerning clients in the medical sector.
With four strategically positioned production bases in the bustling hubs of Shenzhen and Guiyang, driven by a dynamic workforce of over 400 skilled employees, Donghui has meticulously crafted a robust and vertically integrated industry chain. This chain seamlessly weaves together research and development, production, and delivery, ensuring that we not only meet but exceed the diverse needs of our customers with outstanding efficiency and unparalleled quality. Our state-of-the-art facilities are equipped to handle the most intricate and demanding machining tasks, maintaining our formidable reputation for excellence and groundbreaking innovation.
Workshop Display
Certifications

FAQ
1. What is CNC machining?
CNC (Computer Numerical Control) machining is a manufacturing process where pre-programmed computer software controls the movement of machinery and tools. It's used for a wide range of materials, including metal, plastic, and wood.
2. What materials can be used in CNC machining?
CNC machines can handle a variety of materials such as:
- Metals (aluminum, steel, titanium, brass, copper)
- Plastics (ABS, POM, nylon, acrylic)
- Wood and composite materials
- Ceramics and more.
3. What is the difference between CNC milling and CNC turning?
- CNC Milling: Involves rotating the cutting tool and moving it along multiple axes to remove material from a workpiece.
- CNC Turning: Involves rotating the workpiece and using a stationary cutting tool to remove material, mainly for cylindrical parts.
4. How do I choose the right CNC machining service?
Factors to consider include:
- Material requirements
- Tolerance and precision
- Production volume
- Lead time
- Cost-effectiveness
5. What is the typical lead time for CNC machining?
Lead times depend on the complexity of the part, the material, the required finish, and the production volume. Typically, CNC machining can take anywhere from a few days to a couple of weeks for a prototype or small batch, but larger orders may take longer. Normally 7 days for prototyping and 20 days for mass production shipment.
6. What is the maximum size of a part that can be CNC machined?
The size limitations depend on the specific CNC machine being used. Large-scale machines can accommodate parts up to several meters in length, while smaller machines are typically limited to parts around 1000mm in length or less.
7. What is the accuracy and tolerance of CNC machining?
CNC machining offers high precision, with tolerances typically ranging from ±0.01mm to ±0.1mm. However, the exact tolerance will depend on the machine and the material used.
8. How much does CNC machining cost?
CNC machining costs vary based on factors such as:
- Material choice
- Part complexity
- Machine time
- Labor costs
- Quantity (prototypes vs. mass production)
9. What types of finishes can be applied to CNC machined parts?
Common finishes include:
- Anodizing
- Powder coating
- Polishing
- Painting
- Bead blasting
- Electroplating
10. Can CNC machining be used for prototyping?
Yes, CNC machining is widely used for prototyping because it allows for the quick production of precise parts. It's ideal for low-to-medium volume production runs and allows engineers to test designs and make adjustments before mass production.
11. What are some common applications of CNC machining?
CNC machining is used across various industries, including:
- Aerospace and aviation
- Automotive
- Medical devices
- Consumer electronics
- Industrial machinery
12. What are the common challenges in CNC machining?
- Tool wear: As tools wear out, they affect the quality of the parts being machined.
- Material properties: Different materials behave differently during machining, requiring adjustments to the process.
- Programming complexity: Complex designs may need advanced programming skills and specialized machines.
13. How can I ensure the quality of CNC machined parts?
Quality can be ensured through:
- First Article Inspections (FAI)
- In-process inspections
- Final inspections
- Use of quality control tools like CMM (Coordinate Measuring Machine)